81707090 is an even 8-digits composite number following 81707089
and preceding 81707091 . In scientific notation, it is written as 8.1707090 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 32682832 positive integers (up to 81707090) that are relatively prime to 81707090.
81707090 has 8 divisors, whose sum is 147072780
The reverse of 81707090 is 09070718
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million seven hundred seven thousand ninety
Scientific notation
8.1707090 × 10^7
Engineering notation
8.1707090 × 10^6
Prime Factorization
2 × 5 × 8170709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81707090
Product of the distinct prime numbers
The prime factorization of 81707090 is 2 × 5 × 8170709.
Since it has a total of 3 prime factors.
6 , 7 , 91 , 22 , 303 , 977 , 8140 , 6744 , 6287 , 54568 , 381772 , 489248 , 5619487 , 6583270 , 84597751 , 30886731 , 946370549 , 182858050 , 3701806496 , 57506797
n×2
163414180
n×3
245121270
n×4
326828360
n×5
408535450
n÷2
40853545
n÷3
27235696.666667
n÷3
20426772.5
n÷5
16341418
n2
6676048556268100
n3
5.4548050023137E+23
n4
4.4569624325649E+31
n5
3.641654306042E+39
2 √n
9039.1974201253
3 √n
433.93023788965
4 √n
95.074693899719
5 √n
38.234194813712
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81707089
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81707090 can be divided by 8 positive divisors.
The sum of these divisors (counting 81707090) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111101100000001010010
3
Ternary
12200202011001112
4
Quaternary
10313230001102
5
Quinary
131404111330
6
Senary
12035133322
8
Octal
467540122
10
Decimal
81707090
12
Duodecimal
23444242
16
Hexadecimal
4dec052
20
Vigesimal
15ad7ea
36
Base36
1cn9le
md5
6b036d78b05d173427547d76d1bc61fb
sha1
912c9e8cbd17e50760e977e79ab0fb54d43e4ddc
sha256
3228c8f3cc664983546bfabf8f1dff637225133ab1fd3d1fe5551ff61ed08d85
sha512
787cdcdc385a7e84f2c704174e3ca80b5647ef52cba85fb08a72b938f835d115bd3c4c245007d38b258d2f6d85ebe60efac0460179de98887f3da07fdb56962f
ripemd-160
16d43265d215918810b8594dbb18a05a00d6f2da
Diameter
163414180
Circumference
513380787.3804
Area
2.0973425099381E+16
Volume
2.2849033762711E+24
Surface area
8.3893700397522E+16
Circumference
513380787.3804
Perimeter
326828360
Area
6676048556268100
Diagonal
115551274.82004
Surface area
40056291337608600
Volume
5.4548050023137E+23
Space diagonal
141520831.2186
Perimeter
245121270
Area
2.8908138233133E+15
Altitude
70760415.609301
Surface area
2.8908138233133E+15
Volume
6.4285493453105E+22
Height
38517091.60668